After a single basic move the puzzle is as shown in the diagram below. The pivot for the death blossom is labeled A. The logic is as follows. If A =9 the ALS D = 145. If A=2, B=4, and C=1. In either case, r2c2<>1 and r2c3<>4. I was going to use an ALS-XZ to get the 4 elimination, but I saw that by making it a death blossom, I could also get a 1 elimination.